<http://schema.org/about>
"Astronomers probing the deepest mysteries of the universe are getting help from \"zombie\" stars, dead white dwarfs that come back to life in huge explosions."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/zombie-stars-helping-unravel-universes-mysteries>